{
\def\sym#1{\ifmmode^{#1}\else\(^{#1}\)\fi}
\begin{tabular}{l*{6}{c}}
\hline\hline
                    &\multicolumn{2}{c}{External efficacy}      &\multicolumn{2}{c}{Internal efficacy}      &\multicolumn{2}{c}{Standardized index}     \\\cmidrule(lr){2-3}\cmidrule(lr){4-5}\cmidrule(lr){6-7}
                    &\multicolumn{1}{c}{(1)}         &\multicolumn{1}{c}{(2)}         &\multicolumn{1}{c}{(3)}         &\multicolumn{1}{c}{(4)}         &\multicolumn{1}{c}{(5)}         &\multicolumn{1}{c}{(6)}         \\
\hline
Satisfaction with   &       0.459         &       0.134         &       0.073         &       0.539         &       0.909\sym{*}  &       1.223         \\
the head of government&     (0.305)         &     (0.470)         &     (0.343)         &     (0.558)         &     (0.524)         &     (0.816)         \\
\hline
Individual controls &           X         &           X         &           X         &           X         &           X         &           X         \\
Country FE          &           X         &           X         &           X         &           X         &           X         &           X         \\
Observations        &      22,538         &      22,538         &      22,539         &      22,539         &      22,537         &      22,537         \\
Outcome mean        &       0.312         &       0.312         &       0.588         &       0.588         &       0.000         &       0.000         \\
Instruments         &      16 IVs         &       SumIV         &      16 IVs         &       SumIV         &      16 IVs         &       SumIV         \\
F-statistic         &       1.575         &      10.214         &       1.559         &      10.047         &       1.558         &      10.040         \\
\hline\hline
\end{tabular}
}
